Hi folks, I have a bit of a problem. Without doing any updates (unless there was an automatic one that I can't remember), the wifi on my brand-new Thinkpad x220 has started dropping the connection every 10 minutes or so, and ESPECIALLY if I let it go to sleep. Pages don't load, and I can't access the router via the browser. In fact, I can't even ping the router.

The network manager in gnome thinks it's still connected, so I can't just hit reconnect. But turning the wifi off and then back on, or using the hardware switch to power-cycle the radio restores connectivity for a while, but it inevitably drops again.

At first I thought it was a network congestion issue, but changing wifi channels hasn't helped, and the issue doesn't occur on my girlfriend's laptop, nor on either of our phones. Additionally, I booted into Windows 7 on the same machine and have not experienced the same problem. So, I'm ruling out traffic congestion on 2.4GHz.

In this situation, the logical thing to do is to boot up the fedora 16 live cd and or fedora 17 live cd, and then see if the problem still exists.

To me it sounds like your modem router is problematic or else your internet service provider is the cause of the authentication errors (most likely). Just because it worked with windows 7 does not mean anything at all to me.

Isolate problem by:
1. check wireless with fedora live cds
2. update modem/router, especially if it's old (or a faulty model - they don't last forever) NOTE some models are faulty if you browse forums.
3. Internet Service Provider is giving you grief, in which case test your lap top using a different connection eg at a shopping centre, library, MacDonalds or your mates house.

It's a cisco dpc3825. My girlfriend's windows laptop doesn't experience any wifi issues, and I haven't experienced any problems if I boot my own laptop into windows.

I think if it was the AP, then I'd be seeing problems across all devices.

Quote:

In this situation, the logical thing to do is to boot up the fedora 16 live cd and or fedora 17 live cd, and then see if the problem still exists.

See above.

Quote:

To me it sounds like your modem router is problematic or else your internet service provider is the cause of the authentication errors (most likely). Just because it worked with windows 7 does not mean anything at all to me.

My ISP has no bearing on how I connect to my own router. I can't even ping the router, so the problem is not with my ISP. If I boot into an older 3.3.x kernel, I still get problems but much less frequently.

Quote:

Isolate problem by:
1. check wireless with fedora live cds
2. update modem/router, especially if it's old (or a faulty model - they don't last forever) NOTE some models are faulty if you browse forums.
3. Internet Service Provider is giving you grief, in which case test your lap top using a different connection eg at a shopping centre, library, MacDonalds or your mates house.